(19)
(11) EP 1 344 755 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
12.04.2006 Bulletin 2006/15

(43) Date of publication A2:
17.09.2003 Bulletin 2003/38

(21) Application number: 03251442.4

(22) Date of filing: 11.03.2003
(51) International Patent Classification (IPC): 
C04B 24/38(2006.01)
C04B 28/02(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 11.03.2002 JP 2002065248

(71) Applicant: Shin-Etsu Chemical Co., Ltd.
Chiyoda-ku Tokyo (JP)

(72) Inventors:
  • Sasage, Y., c/o Shin-Etsu Chemical Co., Ltd.
    Nakakubiki-gun, Niigata-ken (JP)
  • Yamakawa, T., c/o Shin-Etsu Chemical Co., Ltd.
    Nakakubiki-gun, Niigata-ken (JP)

(74) Representative: Stoner, Gerard Patrick et al
Mewburn Ellis LLP York House 23 Kingsway
London WC2B 6HP
London WC2B 6HP (GB)

   


(54) Admixture and extrudable hydraulic composition


(57) An admixture comprising a nonionic water-soluble cellulose ether having an average particle size of 120-500 µm is suited for hydraulic compositions. The admixture does not form clumps even in the presence of a large amount of water. The hydraulic composition having a proper amount of the admixture added is effectively extrudable.





Search report